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I have been streaming PDF to a client browser (ie 6.x). The server side code is php using a COM C++ DLL that does the data streaming.

The first data sent to the client is:

Status: 200 OK\nContent-Type: application/pdf\n\n

This works just fine as long as the data is of a certain size. If my page is fairly small, I get a blank screen on the browser and no activity. If I press refresh, the PDF reader will open and display the data without errors.

If I add a few lines of data or simply duplicate the data body that I'm already sending, the PDF reader opens on it's own and everything works fine.

I created a nested loop of the data body so that I knew it was formatted properly and then could easily vary the amount of data in the doc by varying the loop counter.

If I get close to filling a single 81/2 x 11 page, the PDF reader opens properly and all is well. If I am filling about 1/2 page, I must press refresh and then the page will display.

My COM object is set up to be able to send the same data to a pdf file rather than streaming. If I do that, all docs are created properly regardless of the amount of data in the doc.

Any ideas? Does streaming wait for a certain block size before starting?

OK, so you want to stamp your document. Maybe you need to give reviewers some advice about the document's status or sensitivity. This tip from author Ted Padova demonstrates how to add stamps with the Stamp Tool along with related comments.